Home
Class 12
PHYSICS
A copper rod AB of length l is rotated a...

A copper rod AB of length l is rotated about one end A with a constant angular velocity `omega`. Calculate the electric field at a distance x from the axis of rotation. Also determine PD between A and B.

Text Solution

Verified by Experts

The correct Answer is:
`(mw^(2)x)/(e),(1)/(2)(mw^(2)l^(2))/(e)`
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC FIELD AND POTENIAL

    NN GHOSH|Exercise EXERCISE|21 Videos
  • DYNAMO, MOTOR, TRANSFORMER

    NN GHOSH|Exercise EXERCISE|8 Videos
  • ELECTROMAGNETIC INDUCTION

    NN GHOSH|Exercise EXERICISES-B|18 Videos

Similar Questions

Explore conceptually related problems

(a) A metal rod of length L rotates about an end with a uniform angular velocity omega . A uniform magnetic field B exists in the direction of the axis of rotation. Calculate the emf induced between the ends of the rod. Neglect the centripetal force acting on the free electrons as they move in circular paths. (b) A rod of length L rotates with a small but uniform angular velocity omega about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. Find the potential difference (i) between the centre of rod and one end and (ii) between the two ends of the rod.

A metal rod length l rotates about on end with a uniform angular velocity omega . A uniform magnetic field vecB exists in the direction of the axis of rotation. Calculate the emf induced between the ends of the rod. Neglect the centripetal force acting on the free electrons as they money in circular paths.

A rod of mass 2 kg ad length 2 m is rotating about its one end O wth an angular velocity omega=4rad//s . Find angular momentum of the rod about the axis rotation.

A wooden stick of length 3l is rotated about an end with constant angular velocity omega in a uniform magnetic field B perpendicular to the plane of motion. If the upper one-third of its length is coated with copper, the potential difference across the whole length of the stick is

A copper rod of length l is rotated about one end perpendicular to the uniform magnetic field B with constant angular velocity omega . The induced e.m.f. between its two ends is

A circular of radius 20 cm is rotating about its own axis at an angular velocity omega . The angular velocity of a particle 'A' which is at a distance 10 cm from the axis of rotation is

A rod of length l rotates with a uniform angular velocity omega about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The potential difference between the two ends of the lrod is

A conducting rod of length l is rotating with constant angular velocity omega about point O in a uniform magnetic field B as shown in the figure . What is the emf induced between ends P and Q ?

NN GHOSH-ELECTRIC FIELD AND POTENIAL-EXERCISE-B
  1. A thin copper ring of radius a is charged with q units of electricity....

    Text Solution

    |

  2. A an electron is placed at the centre of the copper ring of problem 37...

    Text Solution

    |

  3. A thin half- ring of radiusb 20 cm is uniformly charged with a tot...

    Text Solution

    |

  4. A thin nonconducting ring of radius r has a linear charge density q=q0...

    Text Solution

    |

  5. A thin wire ring of radius r has an electric charge q. What is the ten...

    Text Solution

    |

  6. A charge +Q is uniformly distributed over a thin ring of a radius R. F...

    Text Solution

    |

  7. Three identical particals, each of charge Q=0.5 mu C and mass m=7.5xx1...

    Text Solution

    |

  8. Two small similar balls of mass m are hung by silk threads of length l...

    Text Solution

    |

  9. Calculate the field due to a uniformly charged straight conductor of ...

    Text Solution

    |

  10. Two positive charges q(1) and q(2) are located at points with radius v...

    Text Solution

    |

  11. Point charges q and -q located at the vertices of a square with diagon...

    Text Solution

    |

  12. Two co-axisal rings, each of radius R, are separated by a small distan...

    Text Solution

    |

  13. Find the potential phi of an electric field given by vecE=a(y hati+x h...

    Text Solution

    |

  14. Calculate the potential at a point on the perpendicular bisector of un...

    Text Solution

    |

  15. A ring of radius R carries a charge q uniformly distribited over it. A...

    Text Solution

    |

  16. Electric charge q is uniformly distributed in a spherical space from w...

    Text Solution

    |

  17. A copper rod AB of length l is rotated about one end A with a constan...

    Text Solution

    |

  18. A metal rectangular parallelipiped is moved parallel to itself with ...

    Text Solution

    |

  19. Three small identical netural balls are the verstices of an equila...

    Text Solution

    |

  20. Eight equal charged are placed at the eight corners of a cubewhich ...

    Text Solution

    |